Next steps toward HTML support

pkg/analyzer/lib/src/context/context.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.src.context.context;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/instrumentation/instrumentation.dart';
@@ skipping 1137 matching lines @@
       Source unitSource, Source librarySource) {
     if (!AnalysisEngine.isDartFileName(unitSource.shortName) ||
         !AnalysisEngine.isDartFileName(librarySource.shortName)) {
       return null;
     }
     return _computeResult(
         new LibrarySpecificUnit(librarySource, unitSource), RESOLVED_UNIT);
   }
 
   @override
+  @deprecated
   ht.HtmlUnit resolveHtmlUnit(Source htmlSource) {
     computeHtmlElement(htmlSource);
-    return parseHtmlUnit(htmlSource);
+    throw new UnimplementedError('Not supported in the new task model');
   }
 
   @override
   void setChangedContents(Source source, String contents, int offset,
       int oldLength, int newLength) {
     if (_contentRangeChanged(source, contents, offset, oldLength, newLength)) {
       _onSourcesChangedController.add(new SourcesChangedEvent.changedRange(
           source, contents, offset, oldLength, newLength));
     }
   }
@@ skipping 836 matching lines @@
         new PendingFuture<T>(_context, target, computeValue);
     if (!pendingFuture.evaluate(entry)) {
       _context._pendingFutureTargets
           .putIfAbsent(target, () => <PendingFuture>[])
           .add(pendingFuture);
       scheduleComputation();
     }
     return pendingFuture.future;
   }
 }